This code snippet outputs the time which is needed to execute some code.
- (void)someAction {
// save current time
CFAbsoluteTime startTime = CFAbsoluteTimeGetCurrent();
[self someAwesomeAlgorithm];
// print time difference to console
// output Example: Took 0.000078 seconds.
NSLog(@"Took %f seconds.", (CFAbsoluteTimeGetCurrent()-startTime));
}
